The PGM Fi is causing the box under the drivers side to blink code 4 (The crank cyl sensor). The light on the dashboard (pgm fi) also shows. I have measured the resistance of this device and get 1000 ohms. However the dashboard light (pgm fi) is ON and then OFF and then ON then OFF depending on, it seems, the day of the week. Anyone know what to do?.or what the problem is?
Many Thanks